Acoustics & ultrasound

Sound detection is critical in the development of many systems such as meters or other sensing systems. On the other hand, being able to reduce noise for certain devices, especially in the consumer market can be the difference between a product succeeding or failing. These different disciplines require detailed understanding of the fundamentals of acoustics and ultrasonics.

Sagentia applies expertise in acoustics and ultrasonics to developing quiet products and sophisticated sensor systems. This expertise can be particularly important in developments that entail ultrasonic metering, ultrasonic nebulisation, depth measurement object detection/NDT or extensive condition monitoring, or in products that need to be optimised for noise reduction.

Ultrasonic metering

We design ultrasonic meters for gas and water metering using ultrasonic time of flight, where accuracy, power consumption and cost are important considerations. We also have experience of Doppler techniques where there are suspended particles or bubbles.

Ultrasonic nebulisation

We have extensive experience and capabilities around liquid and powder nebulisation for drug delivery and humidification. This includes using ultrasonically excited membranes and submerged transducers.

Depth measurement object detection & NDT

We have developed custom ultrasonic systems for robust liquid level sensing, low-cost object detection and specialist component inspection.

Noise reduction in new product development

Many of the products we design, especially for home use, have demanding sound level specifications. Our approach is to minimise the sources of noise at the concept design stage, and to build noise mitigations into the design. In this way expensive retro fitting of noise reduction materials to the design is avoided and other important functionalities, such as heat dissipation and ventilation are not compromised.

Conditioning & performance monitoring

We have used low cost microphones combined with DSPs to perform sophisticated monitoring of equipment to detect failing components or to optimise performance. This approach can replace a large number of distributed sensors with a single microphone.